Response of soybean cultivars to the reduction of plant density in the northern plateau of Santa Catarina

Authors

DOI:

https://doi.org/10.5965/223811712122022123

Keywords:

Glycine max, plant arrangement, grain yield

Abstract

The plant density is a relevant management practice to obtain high yields in soybean (Glycine max (L) Merrill). The tendency to decrease the plant population is increasing due to the high cost of seeds. Thus, the objective of the present study was to evaluate the agronomic performance of different soybean cultivars to the reduction in plant density in the North Plateau of Santa Catarina. The experimental design was randomized blocks arranged in split plots. In the main plots, five cultivars were evaluated: AS3590 IPRO, BMX Ativa RR, BMX Zeus IPRO, M5838 IPRO, and NS5445 IPRO. The subplots evaluated four population densities: 120,000 plants ha-1, 160,000 plants ha-1, 200,000 plants ha-1 and the control (density indicated by the cultivar holder). Grain yield evaluations and their components were performed and the data was submitted to analysis of variance using the F test. When significant, the means of the main effects were compared by the Tukey test. In case of interaction, the means were then compared by regression analysis. Both comparisons were at the 5% significance level. The reduction in plant population did not affect the number of pods per area, the number of grains per pod, the harvest index, and grain yield. On the other hand, reducing plant density increased the number of pods on the branches and per plant. Therefore, the tested soybean cultivars supported reductions in plant population without affecting grain yield and productivity. In this way, reducing plant density can be recommended for soybean cultivated in the North Plateau of Santa Catarina.

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References

BALBINOT JUNIOR AA et al. 2015. Densidade de plantas na cultura da soja. Londrina: Embrapa Soja. 36p. (Documentos 364).

BALBINOT JUNIOR AA et al. 2018. Semeadura cruzada em cultivares de soja com tipo de crescimento determinado. Revista de Ciências Agrárias 36: 1215-1226.

BONATO ER & BONATO ALV. 1987. A soja no Brasil: história e estatística. Londrina: Embrapa Soja. 61p.

BUCHLING C et al. 2017. Uso da plasticidade morfológica como estratégia para a redução de plantas em cultivares de soja. Revista Agrarian 10: 22-30.

CARMO EL et al. 2019. Phytosanitary risks and agronomic performance of soybeans associated with spatial arrangements of plants. Bioscience Journal 35: 806-817.

CARVALHO PGC et al. 2002. Correlação e análise de trilha em linhagens de soja semeadas em diferentes épocas. Pesquisa Agropecuária Brasileira 37: 311-320.

CQFS RS/SC. 2016. Comissão de Química e Fertilidade do Solo. Manual de adubação e calagem para os estados do Rio Grande do Sul e Santa Catarina. 2.ed. Porto Alegre: CQFS. 376p.

CONAB. 2020. Acompanhamento da safra brasileira de grãos. Brasília: CONAB. 18p. (Boletim Técnico 12).

EPAGRI. 2020. Boletim agropecuário junho/2020. Florianópolis: CEPA. 55p. (Boletim Técnico 315).

FERREIRA AS et al. 2018. Plant spatial arrangement affects grain production from branches and stem of soybean cultivars. Bragantia 77: 567-576.

HEIFFIG LS et al. 2006. Fechamento e índice de área foliar da cultura da soja em diferentes arranjos espaciais. Bragantia 65: 285-295.

KOTTEK M et al. 2006. World map of the Köppen-Geiger climate classification updated. Meteorol 15: 259-263.

KUMAGAI E. 2020. Agronomic responses of soybean cultivars to narrow intra-row spacing in a cool region of northern Japan. Plant Production Science 24: 29-40.

KUSS RC et al. 2008. Populações de plantas e estratégias de manejo da irrigação na cultura da soja. Ciência Rural 38: 1133-1137.

LI S et al. 2021. Estimating the contribution of plant traits to light partitioning in simultaneous maize/soybean intercropping. Journal of Experimental Botany 72: 3630-3646.

LIMA N et al. 2017. Plasticidade Fenotípica. Revista de Ciência Elementar 5: 2-5.

LIU B et al. 2010. Soybean yield and yield component distribution across the main axis in response to light enrichment and shading under different densities. Plant, Soil and Environment 56: 384-392.

MANDA N & MATAA M. 2020. Responses of soybeans (Glicine max (L.) Merrill) associated with variable plant density stress applied at different phenological stages: Plasticity or elasticity? African Journal of Biotechnology 19: 307-319.

MORO FS et al. 2021. Produtividade de grãos em soja e seus componentes sob diferentes densidades de plantio. Revista Tecno-lógica 25: 314-319.

MUNIZ AF et al. 2021. Distribution of soybean plants with a vacuum seeder. Brazilian Journal of Development 7: 98756-98772.

PEIXOTO CP et al. 2000. Épocas de semeadura e densidade de plantas de soja: Componentes da produção e rendimento de grãos. Scientia Agricola 57: 89-96.

PERINI AF et al. 2012. Components of the production in soybean cultivars with determinate and indeterminate growth. Semina: Ciências Agrárias 33: 2531-2544.

PETTER AF et al. 2016. Does high seeding density increase soybean productivity? Photosynthetically active radiation responses. Bragantia 75: 173-183.

POTTER OR et al. 2004. Solos do estado de Santa Catarina. Rio de Janeiro: Embrapa Solos. 745p.

RAMBO L et al. 2003. Soybean yield response to plant arrangement. Ciência Rural 33: 405-411.

RITCHIE SW et al. 1977. How soybean plant develops. Iowa: AMES. 20p.

RODRIGUES O et al. 2011. Rendimento de grãos de soja: efeito do espaçamento e da densidade. Boletim de Pesquisa e Desenvolvimento. Passo Fundo: Embrapa Trigo. 15p. (Boletim Técnico 17).

SILVA RFF & DOBASHI AF. 2021. Análise do custo de produção da safra 2021/2022 de soja no Mato Grosso do Sul. APROSOJA. 4p.

SILVA AC et al. 2018. A importância da soja para o agronegócio brasileiro: uma análise sob o enfoque da produção, emprego e exportação. Disponível em: http://www.apec.unesc.net/V_EEC/sessoes_tematicas/Economia%20rural% 20e%20agricultura%20familiar/A%20IMPORT%C3%82NCIA%20DA%20SOJA%20PARA%20O%20AGRONEG%C3%93CIO%20BRASILEIRO.pdf. Acesso em: 20 jan. 2020.

SOUZA CA et al. 2010. Relação entre densidade de plantas e genótipos de soja Roundup Ready. Planta Daninha 28: 887-896.

UMBURANAS RC et al. 2022. Changes in soybean cultivars released over the past 50 years in southern Brazil. Scientific Reports 12: e121.

VAN ROEKEL RJ et al. 2015. Physiological and management factors contributing to soybean potential yield. Field Crops Research 182: 86-97.

WERNER F et al. 2021. Grain, oil and protein production on soybean stems and branches under reduced densities. Revista Brasileira de Ciências Agrárias 16: e7439.

Published

2022-03-25

How to Cite

DERETTI, André Felipe Hermann et al. Response of soybean cultivars to the reduction of plant density in the northern plateau of Santa Catarina . Revista de Ciências Agroveterinárias, Lages, v. 21, n. 2, p. 123–136, 2022. DOI: 10.5965/223811712122022123. Disponível em: https://periodicos.udesc.br/index.php/agroveterinaria/article/view/21217. Acesso em: 10 dec. 2024.

Issue

Section

Research Article - Science of Plants and Derived Products

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